Set Default Keyboard Language
If you type in two or three languages on the same Gboard keyboard, one of them always opens first no matter which app you are in. On Oppo phones this order comes from a language list that most people never touch, so the wrong language keeps showing up before you even start typing. Switching manually every time gets old fast once you notice the list itself controls what appears first.
Create Folders on Home Screen
Icons piling up on your Oppo home screen make it hard to spot the app you actually need. Dragging one icon onto another works, but it gets messy once you have more than two or three apps to group. This guide covers the dedicated folder function, which is faster when you want to sort several apps at once.
Sync Calendar Manually
If new appointments or updated events on your Oppo phone do not show up right away, the Calendar app has not run its automatic sync yet. This mostly happens with entries added right after you last opened Calendar, since Coloros only refreshes data on launch or on its own schedule. A manual sync fixes this without waiting.
Turn On Automatic Network Selection
If your Oppo phone stopped switching carriers on its own, someone likely turned off Auto select while picking a network manually. Without automatic selection enabled, the phone stays locked to one operator even when a stronger signal sits nearby. This mostly happens on Coloros devices where the toggle hides inside the SIM card settings rather than the main network menu.
Turn Emoji Suggestions On or Off in Gboard
If Gboard keeps popping up emoji suggestions while you type, or if none show up at all even though you want them, the Show emoji suggestions option in the text correction settings is likely set the wrong way. This behavior comes from the keyboard's input prediction feature, not from the messaging app itself. A quick check in the keyboard settings usually clears it up.
Block a Phone Number from Call History
Getting repeat calls or texts from the same number on your Oppo phone and want them stopped for good? A quick way is to block that entry directly from your Call history, so future calls and messages from it get filtered out automatically. By default you still see a notification when a blocked number tries to reach you, which can throw people off if they expect it to go completely silent.
Expand RAM Using Internal Storage
If your Oppo phone slows down when you switch between several apps, the built-in RAM expansion feature might still be turned off. This function borrows free space from internal storage to act as extra RAM, but it only shows up if enough storage is free and your model supports it. Not every device offers the same expansion size, and the setting can be easy to miss in the menu.
Using the Stopwatch
If you want to time an activity or track individual laps on your Oppo phone, the stopwatch inside the Clock app handles both jobs at once. Many people only notice the lap counter after already tracking split times by hand, which makes the built-in option worth knowing.
Show Device Certification Info
If you need to confirm that your Oppo phone carries the right regulatory marks for your country, the certification numbers are not printed anywhere on the case. Retailers, customs offices or repair shops sometimes ask for proof of a CE, R-NZ or FCC-ID mark before accepting a return, import or warranty claim. That information sits inside a dedicated settings screen instead of the box or manual.
Set Up Access Point Names (APN) Manually
If mobile data won't connect or SMS and MMS refuse to send on your Oppo phone, a missing or incorrect access point is usually the cause. This happens after a SIM swap, a factory reset, or when the network profile never downloaded automatically. Entering the APN by hand fixes both data and messaging in one step.
Force Stop an App
When an app on your Oppo phone freezes and stops reacting to taps, swiping it away in the recent-apps view often just hides it while the process keeps running. Force stop ends that process directly, similar to Stop task on a Windows PC. Because it kills the process without saving anything, you usually land on a login screen the next time you open the app.
Change Default Dialer App
If you have installed a second calling app on your Oppo phone, incoming calls might still open the wrong app or not ring through the app you actually want to use. This happens because ColorOS only routes calls through whichever app is set as the default phone app.
Connect to Wi-Fi via WPS
Typing a long Wi-Fi password on a small keyboard gets old fast, especially with random character strings. If your router supports WPS, your Oppo phone can skip that step entirely and pair using a physical button push instead. This only works while both devices are actively listening for the WPS handshake at the same time.
Change Home Screen Wallpaper
Tapping and holding the home screen only pulls up a handful of preset wallpapers on Coloros, so live wallpapers and your own photos are easy to miss. This happens because the quick wallpaper shortcut hides the full Wallpapers settings section, leaving many users thinking custom or animated backgrounds are not supported at all.
Turn Web Link Previews On or Off
When you paste a website link into a text, Messages sometimes shows a thumbnail with the page title and image, and sometimes just plain text. This depends on a setting inside the Messages app that decides whether previews load for every link or get skipped entirely. If previews suddenly stopped appearing or you want to disable them for privacy reasons, this option is the one to check.
Turn Find My Device On or Off
If your Oppo phone goes missing, a deactivated Find My Device feature means you lose any chance to track, lock, or wipe it remotely. Many users only discover the toggle is off after the device is already gone, since it sits inside the Security menu rather than a separate app. Checking its status now takes less than a minute and closes that gap before it becomes a problem.
Turn Automatic MMS Download On or Off
MMS attachments on your Oppo phone often download the moment a message arrives, even over mobile data. On a metered plan that can add unexpected charges before you even open the message. The setting behind this behavior sits per SIM card, which is easy to miss on dual-SIM devices.
Manage Google Activity Controls
If you have not touched the Activity controls on your Oppo phone, Google keeps logging Web & App Activity, location history, YouTube history and more under the Google Account you are signed into. This tracking runs in the background and is not obvious from the main Settings screen. Left untouched, it builds a detailed profile of what you search, watch and where you go.
Set Default SIM for Mobile Data
If your Oppo keeps using the wrong SIM for internet access, calls and data can end up split across two different cards without you noticing. This gets expensive fast when the non-preferred SIM has no data plan or triggers roaming charges. Switching the default data SIM tells the phone which card to use for every mobile data connection going forward.
Create a Local Backup (Storage & Backup)
If your internet connection is too slow or unreliable for a cloud backup, or you simply don't want your data stored online, ColorOS lets you save contacts, messages, call logs, system data and installed apps directly on the device. Without a backup, a factory reset or device swap wipes anything that isn't synced to an account. The local backup can be stored in phone storage or on a memory card.
Change Home Screen Transition Effect
Swiping between home screen pages on your Oppo phone always plays the same sliding animation, even though ColorOS ships with several other transition styles. If the default motion feels plain or you want something like a cube rotation, foil turn, card flip or tilt effect instead, the option is tucked into the home screen settings rather than the main display menu.
Merge Duplicate Contacts
When the same person shows up twice in your Oppo contact list, calls land under one entry while texts go to the other, and you can never tell which number is still current. This usually happens after importing a SIM card, syncing a Google account that already held a copy, or restoring an old backup on top of existing contacts. ColorOS can spot matching names or numbers and combine them into a single record, but it only works if you point it at the right pair first.
Turn Google Play Protect On or Off
If Google Play Protect keeps blocking an app you trust or throws a warning notification every time you install something, the built-in scanner is doing its job a bit too aggressively. On Oppo phones this security check runs in the background by default and can interfere with sideloaded apps or apps from outside the Play Store. Turning the scan off, or back on, changes how much control Android has over what runs on your device.
Set Up a Privacy Password
If Oppo asks for a privacy password when you try to lock an app or open Private Safe, that code is separate from your screen lock. Many users type in their unlock PIN by mistake and get stuck at the confirmation screen. The privacy password can be its own pattern, PIN, or password.